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Old 06-27-2014, 11:40 PM   #1
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Crack in fiberglass- underside of 2301

Hi all,

In the process of crawling underneath our 2011 2301 to install air bags, I noticed a crack in a fiberglass panel that runs about the width of the rv between the frame rails, and about 2' in front of the rear axle. The crack itself isn't any wider than fingernail width at this point, and almost appears to be just in the surface for now.

Obviously water penetration is a concern- we have a weeklong trip planned over the 4th, and I was wondering how big of a concern is this- is it something that I can drill the ends of the crack to prevent from spreading further and temporarily tape over with Eternabond until I can get to a fiberglass shop to look at it for repair?

A bigger question would be if this is something that is symptomatic of a bigger problem (bent frame/body)?

We're the 2nd owners of the unit, which is obviously out of warranty, and have had it for a little over a year now without any other significant issues.

Any help/advice would be appreciated!

Thanks!
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Old 06-28-2014, 12:00 AM   #2
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No worries. That is a laminated floor system. So behind that fiberglass is just aluminum tube frame and all the gaps are filled with block foam. You should be fine just drilling a hole and put Eternabond over it. Frankly most mfg.'s use thin plywood covered in plastic. Its really just something to cover the bottom of the floor. If it were mine, I would probably eternabond it and that's it. Something might have hit it enough to cause a spiderweb to start.

It's the equivalent of covering the ceiling in your basement with something. That can get cracked but it does not affect the floor joists.
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Old 06-28-2014, 12:20 AM   #3
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Thanks Brian- appreciate the information as well as the diagram illustrating construction of the floor.

I'll just drill either end of the crack to keep it from spreading and use Eternabond over it to seal it up.
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